Welding helmet



FIG. 1 is a top, front, right side perspective view of a welding helmet showing my new design;

FIG. 2 is a top plan view of the welding helmet shown in FIG. 1;

FIG. 3 is a bottom plan view of the welding helmet shown in FIG. 1;

FIG. 4 is a front elevational view of the welding helmet shown in FIG. 1;

FIG. 5 is a rear elevational view of the welding helmet shown in FIG. 1;

FIG. 6 is a left side elevational view of the welding helmet shown in FIG. 1; and,

FIG. 7 is a right side elevational view of the welding helmet shown in FIG. 1.

The broken lines shown in the drawings represent portions of the welding helmet that form no part of the claimed design. 

CLAIM The ornamental design for a welding helmet, as shown and described. 